This investigation constitutes a quantitative variationist approach toward Spanish in contact with Catalan in Barcelona, Spain. It seeks to empirically measure concrete usage patterns of two phonetic variants, [&#619;] and [z], in the Spanish of Catalan-Spanish bilinguals, as well as establish the extent to which both variants are conditioned by linguistic factors and Catalan dominance. The careful Spanish speech of 20 Barcelonan females (ages 18&#8211;27) was elicited through a word-reading task. Goldvarb binomial logistic regression analyses revealed that sensitivity to linguistic factors varied according to Catalan dominance. Moreover, although both variants were favored most by Catalan-dominant speakers, usage patterns among more Spanish-dominant speakers were divergent, consistent with claims of negative social value linked solely to [&#619;]